feat: big-suite terraform example + provider nodejs zip fix

- examples/big-suite: E-Commerce 10 functions, 6 layers, real depends_on
- provider: nodejs packages now wrapped in ESM zip (buildJSDeployZip)
- provider: loadPackageLiteral reads raw file, nodejs zip via source_dir
- all 10 functions verified working: python/node/ruby/go runtimes

examples/big-suite/environments.tf

@@ -0,0 +1,33 @@
+# ──────────────────────────────────────────────────────────────────────────────
+# Environments — E-Commerce Platform API
+# ──────────────────────────────────────────────────────────────────────────────
+
+resource "fission_environment" "python" {
+  name     = "ecom-python-env"
+  image    = "ghcr.io/fission/python-env"
+  version  = 3
+  poolsize = 3
+}
+
+resource "fission_environment" "node" {
+  name     = "ecom-node-env"
+  image    = "ghcr.io/fission/node-env"
+  version  = 3
+  poolsize = 3
+}
+
+resource "fission_environment" "ruby" {
+  name     = "ecom-ruby-env"
+  image    = "ghcr.io/fission/ruby-env"
+  version  = 3
+  poolsize = 2
+}
+
+resource "fission_environment" "go" {
+  name            = "ecom-go-env"
+  image           = "ghcr.io/fission/go-env"
+  builder_image   = "ghcr.io/fission/go-builder"
+  builder_command = "build"
+  version         = 3
+  poolsize        = 1
+}